Cleaning device.



P, AI BAYLES sin A. U. HBN.

CLEANING DEVGE.

APPLEUATLQN ULEB 14u25, 190g.

Patented Aug. 3, 1909.

UNITED ensures-- PATENT OFFICE.v

PATRICK A. BAYLESS ANI) ARTI] UR (l, IllllN, GF OKLAHOMA, OKLAHOMA.

. CLEANING DEVICE.

Specification ofy Letters Patent.

Patented Aug. 3, 1909.

Application filed May 25, 1903. Serial N0. 434,832.

To dll wtor/L fit may concer-n: l

lle it known that; we, lxriucn A. Baumes yand Airman li':1x,citizens ot'the United 'ntorc particularly to one cepccially adapted for use inconnection with an automatic or pneumatically operatori piano or:similariti- .etrunicntfor cleaning tht` air tubos and other parts ofthe same.

The object of the invention is to provide a simple, prauzticalY andctlicicnt cleaning device of this character which may be in the form ofan attachment. vlor ready application loan automatic piano and which mayeniploy the suction pump of the instrument; to accomplish the cleaningoperation.

With the aboreand other objects in View, the invention consists ot' thenovel features ol construction and the conxbination and arranlfcnientof'dcvioes hereinafter fully described and claimed, and yillustrated inthe lead, a clcaniim or suction tube 8,

accompanying drawings, in Which- Figure l is a. diagrammatic viewillustrating the manner in which our invention iS connected to the partsof an 'automatic or pncuniatically operated musical instrument; and Fig.2 is an enlarged sectional view through the invention.

vln the drawings l represents the suction pump of an automatic orpi'icumaticully operated piano, 2 representa its governing bell owe,represents the main suction pipe between the pump and bellowsand 4represents the tracker board of such piano. Said lgoverning bellows isconnected to the vacuum o1' suction pump and the wind chest of. thepianoVto which wind chest; all of the pneunmticel are attached. l/Vhenthe piano is not playing none of the pneumatici; will he working andsaid governing bellows 2 will keep a uniform vacuum in the Wind chest.The above parte are conventionally illustrated since they are old andwell knowny and 'form no part. oi the present invention.,

In the practice ot' our invention We ar-v range a thrceway valve :i inthe pipe 3 and connect` its third branch 6 to'a vacuum chamber randdust. collector 7 'from Which The valve ie'herc shown in the lorntot arotary plug having a T-.Qhapcd duct or passage E) and provided with asuitable operating handh` to which when turned in one position causesthe cross portion ot' thc T-shapcd pasA sage lo register with thc twoacctionr7 or branchesI of the main pipe to afford 'I'recconminuit-'ation between thi` pump i andthe bellowsA the third branch f5ot' the '.alve being closed by the solid portion ol thc plugr. ll'hcusaid handle is given a quarter turn the cross portion ol the passant ilbrought into connnuuication with the branch pipe ii and the third branchot .ad passage l is brought into rc;q eter with that acction or branch'of the pipe l which leads to the pu'inp 1 thereby throwing thc latter incommunication with thc vacuum chamber and dust collector T.

'lhe vacuum chamber and dust collet-tor T may be arranged at` anysuitable point wit-hin the piano or inetrunient and nia \I bc ofanySuitable form and construction. The pipes; or tubes,l (i and Si areconnected `to it` at opposite pointei and arranged within it. he tweensuch points is a suitable screen 1l which Serves,I to prevent' the duet`from pai-ising to the pump. As illustrated` said screen is composed offabric arranged upon a coil spring 12 which serves to hold it extendedand in close contact with the wall ot the chamber or casing Timmediatelyabove 'an inwardlyprojecting stop tlangc or :shoulder 13 arranged Withinthe same, as'julearly shown in Fig. 2. The vacuum chaiulafr and dustcollector 7 is provided with a removable cover 14 to permit. the dirtand dust to bc rcinoved from the Same' and it'. is also provided with a'safety or regulating valve l5. The valve 15 is designed to preventinjury to the suction pump by admitting air into said chamber lin theevent. that the tube 8 becomes stopped up, and while it may be'ot anysuitable form and construction and arranged at` any desired point. wepreferably locate it in the cover 14 and construct it'of a. plate ordisk covered with rubber, leather, or thc like 16 and fixed upon asliding stein 17 which projects through a valve opening 1H in the coverand is slidable in an arched `cross bar 19 arranged over Said valveopenV` ing. The projecting end of the valve` in screw threaded toreceive an adjusting.r nut '20 and arranged upon. the stem between thenut and the-guide or cross bar 1E) is a coil Spring 2l which servestohold the valve -tion, we preferably make it as illustrated so seated.The tension of the spring may be regulated by the nut so as to controlthe suction within the chamber 7 The cover 14 for said chamber is airtight and while it may be of any suitable form and constructhat it willbe frictionally'retained in an opening in said chamber or casing;I 7.The suction tube 8 is )referably llexible and has one end connected to anipple 22 projecting from the chamber 7 and its other or free end may besuitably shaped so that it can be passed over the tracker board 4 orother parts of the instrument which are to be cleaned.

In operation, when it is desired to clean the air tubes leading from thetracker bar -t of the piano, or any other parts of the latter, thehandle l() is o erated to turn 'the valve to cut oit' the bel ows 2 andto throw the vacuum chamberand dust collector T in communication withthe suction pump l. The instrument is then operated so that the pumpwill suck air through the tube 8, the chamber 7 the pipe the -valve 5,and the branch of the )ipe 3 leading' to the pump. The mouth, or grecend of tlie'tube 8 is then passed over the tracker bar to clean thelatter and to suck the dirt from the tubes in communication with theopenings in the tracker har. After the instrument iscleaned, the valve 5is turned to its 'normal position to cnt out the chamber T to throwl thepuuip into communication with the bellows.

practical, convenient and effective means for cleaning a pneuinaticallyoperated piano or analogous machine. It may be readily applied to thepiano and enables the suction pump of the attei' to perform the cleaningoperation. It will occupy but little space within the instrument andwhen not in use does not in any wa affect the operation of the Same. Byeniplbying the .suction pump ofthe instrument, a steady suction isobtained through the cleaning tube 8 so that the eleanin will beeffectively done.

Having t us described our invention what we claim is;

In a device of the character described, the combination of a combinedvacuum chamber and dust collector having an opening at one end and ashoulder within the same inleijmediate its ends, an air tight closurefor the opening, a fabric screen, a coil spring` ranged upon the screenand adapted to hold it againsttliewvalls of the chamber or collector andagainst said shoulder, a flexible suction tube connected to the chamberor collector on one side of the screen and an air exhaust pipe connectedto the chamber or collector upon the other side of said screen.

In testimony whereof we hereunto aiix our signatures in the presence oftwo wit# nesses.

Witnesses: l

From the foregoing; it will be seen that our invention provides anexceedingly simple, i

` W. A. lllAiizus, J. A. liiANiri.

